The main objective of the Project is to contribute to enhancement of traffic flows on Corridor X and to improve environmental and safety conditions of the Serbian road transport network in line with EU standards. The tunnels to be supervised are part of the important motorway from Grabovnica to Levosoje, about 74 km in total.

The Project comprises the supervision of the two distinct work lots, namely:

LOT 3 – Tunnel Predejane: 1,112 m long, designed with two separate tunnel tubes each for one traffic direction. Center-to-center spacing of tunnel tubes is variable and ranges from 35 m (in the portal area) to maximum of 65 m; and

Supervision of motorway construction works on the E-75 motorway Corridor X (Grdelica – Vladicin Han section) tunnel Predajene and tunnel Manajle, in accordance with national and professional standards carried out successfully;